Metallic structure



Dec. 30, 19360 M, L. CARR METALLIC STRUCTURE Filed April 30, 1928 ---Imren nzv Maurice L.Ea1"1" Patented 1930 I UNITED STA MAURICE L. CARE, OF NEW YORK, N.

METALLIC 3 STRUCTURE Application filed April 80,

1 My invention relates in general tometal doors, -partitions, walls, floors, and the like, more particularly to such structures in which the space between the faces is divided into a 5 plurality of small spaces or cells; and the principal object of m invention, briefly stated, is the method constructmg a new and improved structure of this kind.

' As a further objectcof my invention, I-p'rof 1 vide a new and improved method of fastening the two faces of the structure together,

a method which produces an economically constructed smoothw faced structure.

As a .further object of my invention I I produce a structure which is conslderably lighter in weight, the vlightness being obtained without sacrificing the rigidity of the structure. Moreover, the structure can, if desired, be shi ped to thelace of its in- Q stallation in a ock down orm, with considerable savings in freight and cartage charges, and assembled without the aid of special" tools. 4

Further, objects of my invention, not specifically mentioned here, will be apparent from a readin of the detailed description and that face of the door are pierced at regular claims, as fo ows: p

To illustrate my invention I have shown, by way of example, a" doorconstructed m 30 accordance with the objects of the inven-' tion, 'it'being understood that this showing is by way of example only, as there are many other usages which can be made of the invention. k a

Fig. 1, shows a broken perspective of the door; Fig. 2 illustrates one method of fastening the faces of the door together, and Fig. 3 shows the details. of the closing in channels. v

The face of the door Shown in Fig. 1 comprises sheet metal members 1, 2, 3, etc. The edge of member 1, adjacent to member 2, is bent downward, forming a U shaped projection 4, which stands at right an les to the face of the member. The ed e o member 2, adjacent to member l'is cut" downward to forfn a projection 5 which stands at right angles to the face of the member and fits into the U-shaped projection 4. These 5 two projections are fastened together by" 192s.- Serial in; 273,964.

' The'other face of the door comprises sheet I metaL-members 8, 10, 12, etc. The edge of member 8 adjacent to member 10, is bent upward to form a pro ection 9, which fits into the U-sha ed pro ection of the adjacent member 10.. other members 0 the faces are bent, the one to form a U-shaped projection and the other to form a straight projection which fits into the U. These projections, which are in reality standing seams, are so disposed that the seams of one face lay at right angles to the seams of the door. 0

The seam 4-5, and, other similar seams of intervals by the slots 17. The seams 9-11,

etc.,; of the other face of the door, arepierced:

at regular intervals bythe slots 18. In the assembled door theslots 17 and 18 register to form a lap joint between the traversely disposed seams. These slots and seams are so proportioned that .the seams of the one face of the door rest against the innermostsideof the opposite face of the door. This forms a plurality of cells, which are bounded on two sides by seams of the one face, on two other sides by seams on the other face and on tihe two remaining sides by the face of the cor.

In smaller structures these notches would be of equal depth in the two faces of the imilarl the adjacent edges of the.

other face, in the assembledstructure to form a half lap joint. In larger structures, or in' structures where additional stiffness is desired, the notches can be cut to complementary depths. That is, for example,.the notches in the 911 seam might ,be out only the'depth of the seam, and 'the registering notches in. the seams of, the

other face, such as 4, would be cut to A of the depth of the seam. In adjacent seams, 13- 14, for example, the cutting could be reversed; that is, in 13-14 and on 45 and other registering seams. If particular stiffness was desired in one direction, at the expense of stiffness in the opposite, all the seams in that one face would be cut to depth, and all the seams in the weaker face to depth. In certain other instances, it might be desirable to cut the seams of one face at varying de ths with the shallow notches in the center 0 the structure and the deeper notches near the edge. The notches in the seams of the other face would becutto register. Thus it will be seen that a wide Variation in the details of the construction can be made to fit the structure to particular requirements.

The edges of the door are closed in by channels. The exact manner of placing these channels depends largely upon the use to which the door is to be put. In one embodiment of the invention, a hinged door, the top and bottom channels are turned out, and the latch and hinged edges closed; by a channel turned in. In Fig. l I show such a door, with the channel 7 turned in and the channel 8 turned out; The outwardly turned channel permits grinding of that edge of the door the outside of the faces of the door.

to fit it into the casement or frame while the inwardly turned channel presents a smooth, sightly edge to which hinges and latches can be readily attached. The flange of the out- I ward turned channel 6 is cut away to butt against the flan e of the channel 7, and the webb is bent to orm the L-shaped projection 16 which butts. against the webb 15 of the channel 7, to form a braced corner. This projection is fastened to the channel by screws, bolts, riveting, or welding.

In another embodiment of my invention, the channels of the door may be over and on Such an embodiment is shown at the bottom of Fig. 3.

It will be seen that the channel 30 overlaps the faces 1 and 10 of the door. The corners of the door may be made by butting the channels together or by mitering them. At the top of Fig. 3 I show another method of closing the edges of the door. The main channel is turned out, and a filler channel 32 is tightly fit within the main channel. This latter channel 32 is ad'ustable so that the door f an hebe accurately tted into its frame. filler channel is fastened to the main channel by screws, bolts, welding or solderin In still other embodiments, a combination of the foregoing methods of closing the edges might be desirable. The channels need not all-be placed in the same manner, the combinations making the structure fit readily into an requirements which may arise.

n ordinary doors, the two faces of the door are held together by flat headed bolts or screws. However, if the door is to'be :used

as an office door, or a door in a hotel room or the like, it is often desirable to have the faces of the finished door perfectly smooth, and not marred by the bolt heads. Doors of this kind are usuall painted to represent a single piece of woo and must therefore be smooth and free from projections.

In Fig. 2 I show the details of a smooth faced door, particularl an improved method of holding the faces 0 such a door together. In the seam 45 between the sections 1 and 2 I place the slot 22 into which the tenon 23 projects. In the seam 14 of the other face of the door, I place the slot 21 and the mortise 20. In assembling the two sections slots 21 and 22 are made to register, then the face containing the seam 4-5 is slid at right angles to the seam 14 to insert the tenon 23 into the mortise 20, thereby securel locking the faces of the door together. hen the edge channels of the'door are fastened in place, the two faces are securely held with respect to each other, and the tenon is thereby held in the mortise. The cracks in the faces of the door, which appear at the joints between sections, can be filled in with solder, putty, or the like, and" the door face polished smooth so that the surface can be painted and grained as mentioned above. 1

Fire resisting doors are frequentl filled with a fire resisting material, to give t e door added fire resisting properties. Among the materials that may be used for such purposes are diatomaceous earth, asbestos, mineral wool, and the like. These materials, like most flaky substances, will settle some in time, and unless special means are used to prevent it, voids will be formed by this settling. The cells contained within a door of my invention afford a convenient means for supporting such material. Since the interior of the door is divided into little cells, the material is securely supported in small volumes, each of which settles very little because of the lessened weight the lower stratas must support.

If a moulded filler is to be used in a door of my construction, the one face of the door is assembled and laid flat. The filler is poured 'in this face and then the other face is forced sound deadening properties, but if more com-" plete deadening is wanted, the door can be filled with a sound deadening material. Mineral W001, W001 felt, or any suitable material can be usedas a filler. The material will be supported by the seams, and therefore the sound deadening roperties of the door will be retained for a onger riod of time than was possible in doors of t e type constructed I heretore.

Extremely large doors, such as 'would be 0 used 1n arages, factories and warehouses and the li e, can be shipped to the place of installation in a knock down form, and assembled on the job, without the use of special tools. The sections for adoor of this't e are similar to; those shown in Fig. 1, di ering therefrom in that the seams are carried to the edge of the door.- The channels would best be of the type shown in Fig. 3, and would be held=in place by bolts. I I While I have chosen to describe-my invention with a door, I have done so by way of example only, as there are many other uses to which the structure can beput, by one skilled in the art, without departing from the scope of the invention. 7

Having thus described my invention, what I consider new, and desire to have protected by Letters Patent, is pointed out in the appended claims.

What I claim is: V 1. In a double metal structure, sides or faces composed of a plurality of sheet metal sections united and held together by standing gether. I r I 2. In a double metalstruetu're, a face composed of a plurality of metal sections, standmg'sea'ms oining ad'acent ,ones of said sections note es in 'sai seams, a second face similarly constructed, notches in the seams of said second face, said notches ering in the assembled structure to form a p joint that permits the seam of one face to rest against the inward side of the other faceto thereby cross brace the structure mearfls fps I r 0 an faces, and means for holding facesto-' two faces each com- I closing the space between the gather. I

3. In a metal stru posed of a plurality of metal sections, standmg seams oining ad acent ones of said sections, notches in said a touch projecting into the notches of one of said faces, a

mortise adjacent to the'notch es of the other t right angles to each an assembled l of said fsces, said seams being structure, with said I'AEIIODB l w w illtO tenons longitudinally of to lock said faces togethenj I 4. In a metal structure,

seams pr 'ecting inwardly at right angles to mortisesiby moving theface containing the ing seams joining adjacent ones of said sections, notches in said seams, a tenon projecting into the notches of one of said faces,-a mortise adjacent to the notches of the other: of said faces said faces being assembled with the seams of one disposed at right angles tothe seams of the other with the notches registering and the face containing the tenons being then moved longitudinall of its seams to register, with said tenons with said mortises to thereby lock said faces together, and means including channels for closing in the edges of said structure.

5. A double faced structure having the faces spaced apart by standin seams on the 9Q faces, the seams of the one ace being disposed at right angles to .and -lap d into the seamswof the other face to brace t 0 structure and to form a plurality of completely closed cells. I B5 6. In a double faced metal structure, a planar face composed of a plurality of sections having a U-shaped flange disposed at one of its edgesand an L-shaped flange disposed at its opposite ed c, said L-flanges beto ing inserted in the U- anges of adjoining strips to form standing seams composed of three thicknesses of metal and disposed at right angles to the face, said seams having slots in t eir free edges, a second and similarly constructed face disposed with its seams at right angles to the seams of the first and with its slots registering with the slots of the firs seams to bring the free edges of the seams of the first against the second face and the m free edges of the seams of the second face against the first face, said seams and faces thereby forming completely closed cells between the faces and said seams preven translation of one face on the other inall d1- rections, means for locking the faces together:

to prevent separation by movement in the planes of the seams, an the vedges of the structure. 7 In witness whereof, I- hereunto subscribe no means for closing .my name this 28th day of A ril, A. D. 1928.

mum: LCARR.

I I masaaalm.@ P d oi e'plur lit; of metal 

